Why document db is creating 3 connections for a single insert operation.

Hello, I have created a document db instance of t4g.medium size. I am trying to insert data in a collection. While monitoring the connection count in AWS monitor console, I observed that for every request 3 connections are getting created. Has anybody faced any similar issue or any idea why 3 connections are getting created for each request.

Connection code

``

func createConnection() (*mongo.Client, error) {
	clusterEndpoint := fmt.Sprintf("%v:%v", host, port)
	connectionURI := fmt.Sprintf(ConnectionStringTemplate, username, password, clusterEndpoint, database, ReadPreference)
	tlsConfig, err := getCustomTLSConfig(CaFilePath)
	if err != nil {
		log.Errorf(context.Background(), "Failed getting TLS configuration: %v", err)
	}
	clientOptions := options.Client().ApplyURI(connectionURI).SetTLSConfig(tlsConfig)
	clientOptions = clientOptions.SetMaxPoolSize(1)
	clientOptions = clientOptions.SetMinPoolSize(1)

	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	defer cancel()

	client, err := mongo.Connect(ctx, clientOptions)
	if err != nil {
		return nil, err
	}

	// Test the connection
	err = client.Ping(ctx, nil)
	if err != nil {
		return nil, err
	}
	log.Infof(context.Background(), "Connection created successfully")

	return client, nil
}

``